Atmos Bubble and boom! Index measured, not opinion

Harold and the Purple Crayon (2024)

DEMO 4.2 · BUBBLE 4.3 · BOOM 4.1 (with BEQ 7.1). Bass measured on the disc, DD+. Directed by Carlos Saldanha. Adventure, Family, Fantasy, Comedy.

Harold and the Purple Crayon (2024) poster
Front
28%
L50%
29%
R53%
100%
C94%
LFE
4%
LFE13%
Surround
9%
Ls31%
9%
Rs30%
4%
Lrs19%
4%
Rrs21%
Wide
1%
Lw2%
1%
Rw2%
Height
2%
Ltf5%
2%
Rtf4%
2%
Ltm15%
3%
Rtm18%
0%
Ltr0%
0%
Rtr0%

Bar and top figure — level against the film’s most active channel. Bottom figure — share of the runtime the channel carries signal.

DEMO
4.2 / 10
Bubble
4.3 / 10
Boom, as released
4.1 / 10
Boom with BEQ
7.1 / 10
Measured release
Disc · DD+ · chart by kaelaria
Also in the catalogue
Streaming (Amazon) · DD+ Atmos; Disc · DD+ Atmos; Disc · DTS-HD MA 5.1 — not measured here
Deep bass peak, 10–30 Hz
-34.4 dBFS · with BEQ -23.6
Depth, 10–20 vs 30–60 Hz
-8.7 dB · with BEQ +7.9
Average level, 10–30 Hz
-60.8 dBFS · with BEQ -50.0
Minutes of deep bass
2 min · with BEQ 10 min at ≥ −30 dBFS
Filtered release
its BEQ restores up to 22.1 dB at 10–20 Hz
Tomatometer
27% · as of 26 Feb 2025
Metascore
34 / 100 · as of 25 Mar 2025
Chart scale read
-10 to -89.5 dBFS
Height uptime
4.3%
LFE uptime
4.7% (shown, not scored)
Dynamic range
22.2 dB
Channels used
16 of 16
Genres
Adventure, Family, Fantasy, Comedy
Tags
comedy, family, fantasy, live-action/animated
Audio
DD+ Atmos, DD+, DTS-HD MA 5.1
Released
31 Jul 2024
First listed
27 Aug 2024
Sources
PerceptualPro + BEQ
Render
older, corrected

Channel by channel, through the film

One lane per speaker, the whole film from left to right. Bar height is how loud that speaker gets (square-root scale against this film's loudest moment, so quiet passages stay visible). The amber line under a lane marks the moments counted as playing, and the figure on the right is their share of the film. For the six height speakers that share is part of BUBBLE.

Front
L
50%
R
53%
C
94%
LFE
LFE
13%
Surround
Ls
31%
Rs
30%
Lrs
19%
Rrs
21%
Wide
Lw
2.1%
Rw
2.2%
Height
Ltf
4.6%
Rtf
4.4%
Ltm
15%
Rtm
18%
Ltr
0.4%
Rtr
0.4%
0:000:451:30

Read from PerceptualPro's channel-activity graph, pixel by pixel. A lane marked unused never rises out of its line.

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